Research Article
Modelling of Severe Accident and In-Vessel Melt Retention Possibilities in BWR Type Reactor
Table 4
Properties of oxidic and metallic layers assumed in analytical calculations.
| Property | Notation (unit) | OXIDIC layer | METALLIC layer |
| Thermal expansion coefficient | β (1/K) | 1.05E-04 | 1.10E-04 |
| Thermal conductivity | k (W/m·K) | 5.3 | 31.4 |
| Dynamic viscosity | μ (Pa·s) | 5.35E-03 | 4.00E-03 |
| Emissivity (crust for Oxide and molten for Metallic) | | 0.8 | 0.45 |
| Liquidus temperature | or (K) | 2973 | 1600 |
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